What causes cold , deep currents to from in the oceans near the poles

In the 3rd line of defense blood vessels expand,

julia-pushkina [17]

The answer is true!!

5 0

3 years ago

Quizlet me Taleshia Cashaw 12-10-20 10 Matching questions 1. genetics A a complex moine that contains all of the sensation neces

bonufazy [111]

who developed the first system of classifying organisms

A: linnaeus

B: Darwin

C: mendel

D: watson

HURRY HELP ME OUT ASAP!!

3 0

2 years ago

Rabbits, turtles, fish, humans, and whales all share certain characteristics but also differ from each other. All of these speci

Delvig [45]

The levels of organisation are

Domain: Eukarya

Kingdom Animalia

Phylum :Chordata

Explanation:

They all share these levels of organisation because;

for the Domain Eukarya, they have;

→multi-cellular cells containing nucleus; and other membrane bound organelle.e.g Mitochondrial.

→their DNA located in the nucleus packaged as linear chromosomes bounded by histone proteins.

→mode of reproduction which is sexual.

They share Kingdom Animalia because;

→they have multi-cellular, specialised cells, bounded by plasma membranes.

→they have specialized tissues, organs, and system.

→they all undergo heterotrophic mode of nutrition as evident in the question 'that they must consume plants and animals as source of energy'

→they exchanged communication by nervous ssytem and 

→ use homeostatic mechanisms to regulate water balance of the body through the kidney.

→Humans,Rabbits,and whales are VIVIPAROUS; they give birth to young ones alive.

→Most fishes lay eggs to reproduce, they are said to be Ovoviviparous.

They belong to phylum Chordata because ;

→they all have noto chord; which serve as template for axial skeleton.

dorsal hollow nerve cord -template for the brain and spinal cord

→pharyngeal slits- templates for gill aches in bony fishes and components of inner ear in land animals.

→ tail length varies in these organisms.

8 0

3 years ago

How is the cell membrane adapted to it's function

Genrish500 [490]

Cell membrane is made up of Lipid Bilayer which are fluid in nature , means they move continuosly , due to this fluid nature they are selectively permeable to compounds.

6 0

3 years ago

In a high school laboratory, which of the following constitutes an experiment? I. learning to use a microscope by examining fixe

victus00 [196]

Answer:

The correct answer is - option III.

Explanation:

An experiment is scientific procedure to test a hypothesis and to demonstrate any scientific procedure to prove something. In high school laboratories there are experiments constitutes scientific methods that helps in demonstrate or prove or existence of something.

Extracting various pigments from the leaves of plants and identifying them by separating from it, is the best example of the high school laboratory experiment among all the options.

Thus, the correct answer is - option III.

7 0

3 years ago