Resume
Samenvatting Bricks Biology thavo/tvwo Chapter 7 - Biologie
- Cours
- Type
- Book
Samenvatting van BRICKS Biology tweetalig vwo chaoter 7; Evolution, in het Engels!
[Montrer plus]
Livre connecté
Titre de l’ouvrage:
Auteur(s):
- Édition:
- ISBN:
- Édition:
Plus de résumés pour
-
Bricks biology volume 3 thavo/tvwo chapter 4 one+one=three
-
Samenvatting Bricks Biology chapter 4, one + one = three - Biologie
-
Bricks Biology thavo/vwo volume 2 chapter 2
Vendeur
S'abonner
jimkloos
Aperçu du contenu
§7.1; How it all beganMutations can be negative, but they can also be neutral or sometimes even beneficial. These mutations
are caused because of evolution. Darwin found out about evolution when he found rocks on top of a
mountain and then he realized that the top of the mountain once had been in the sea.
Darwin found on the Galapagos island that the species there looked different to the species on the
mainland, but were also similar in a way. He also noticed that on each island the species had a
different type of diet, fourteen different finch species had the same ancestor, but evolved to fit better
in their environment. The more successful the individual, the longer it survives and more offspring it
can produce, this is called differential reproduction.
Breeding organisms with a specific characteristic, to get the desired characteristics is called artificial
selection. Unsuccessful individuals will reproduce less often as successful individuals. Adaptation is
essential for species to survive in the changing ecosystem.
Structural adaptations are evolutionary changes in body parts. Rats may have gotten claws and are
now mole-rats. If a species changes color in order to camouflage then it's called mimicry.
Physiological adaptations (evolutionary changes in the chemical process inside the cells if an
organism) happen much faster. For instance, if you use antibiotics after a while they won't work as
good, because the bacteria become resistant to antibiotics.
An example of natural selection is when the food species eat is high in the trees, the taller species will
survive. They pass on these genetics more easily, because they can reproduce more often.
§7.2; Evidence for evolution
Homologous structures are similar structures in the arrangement of bones in different species. Similar
structures don't always mean that species are closely related. When body structures don't have a
common evolutionary origin, but do have the same function, it’s called analogous structures. All the
different structures together are called anatomical structures.
Vestigial structures are structures that aren’t used anymore / doesn’t serve its original service.
Examples are: a tail, muscles in ears, muscles attached to hair follicle. In furred mammals these
muscles make their hair stand upright. However, humans just get goosebumps.
Scientists thought that the appendix was useless after you’re born when it was used to digest
cellulose. However, it contains immune system cells, so it’s not a vestigial structure.
§7.3; What about fossils…
When an organism dies, it turns into a fossil, at a fish this process can be: first it sinks to the
bottom of the ocean → soft body parts decay and are eaten away → the fish becomes covered with
sand and mud → only the skeleton is left which is covered with lots of layers of mud → the bones
decay too, the space that was filled with bones is now filled with mineral deposits → it forms a
stone cast → the layers of rock and mud are lifted due to movements of the Earths crust → a part
of the rock eroses away and that leaves the skull of the fish exposed.
Les avantages d'acheter des résumés chez Stuvia:
Qualité garantie par les avis des clients
Les clients de Stuvia ont évalués plus de 700 000 résumés. C'est comme ça que vous savez que vous achetez les meilleurs documents.
L’achat facile et rapide
Vous pouvez payer rapidement avec iDeal, carte de crédit ou Stuvia-crédit pour les résumés. Il n'y a pas d'adhésion nécessaire.
Focus sur l’essentiel
Vos camarades écrivent eux-mêmes les notes d’étude, c’est pourquoi les documents sont toujours fiables et à jour. Cela garantit que vous arrivez rapidement au coeur du matériel.
Foire aux questions
Qu'est-ce que j'obtiens en achetant ce document ?
Vous obtenez un PDF, disponible immédiatement après votre achat. Le document acheté est accessible à tout moment, n'importe où et indéfiniment via votre profil.
Garantie de remboursement : comment ça marche ?
Notre garantie de satisfaction garantit que vous trouverez toujours un document d'étude qui vous convient. Vous remplissez un formulaire et notre équipe du service client s'occupe du reste.
Auprès de qui est-ce que j'achète ce résumé ?
Stuvia est une place de marché. Alors, vous n'achetez donc pas ce document chez nous, mais auprès du vendeur jimkloos. Stuvia facilite les paiements au vendeur.
Est-ce que j'aurai un abonnement?
Non, vous n'achetez ce résumé que pour €4,49. Vous n'êtes lié à rien après votre achat.
Peut-on faire confiance à Stuvia ?
4.6 étoiles sur Google & Trustpilot (+1000 avis)
71241 résumés ont été vendus ces 30 derniers jours
Fondée en 2010, la référence pour acheter des résumés depuis déjà 15 ans
Récemment vu par vous
Examen ·
DEOMI Exam 1 18-03 Team 4 correctly answered graded A+ 2024/2025
Examen ·
AP Human Geography Chapter 6 Test with complete solution
Resume ·
Samenvatting Menselijke biologie en genetica hoofdstuk 5
Examen ·
PALS Pre course Self-Assessment Answers 2023|2024 RATED A+
Examen ·
ESC 100 LAB FINAL EXAM QUESTIONS & ANSWERS 100% ACCURATE!!
Examen ·
SLCC Biology 1090 Unit 1 Exam Questions and Answers 2024
Pack ·
TAOCO Initial COL Training exam solution pack already passed!
Examen ·
VATI RN Maternal Newborn 2019 Exam Questions And Answers
