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3 years ago

What are two ways a pollen grain can get to the stigma of a pistil

Biology

1 answer:

SVETLANKA909090 [29]3 years ago

3 0

By a bee traveling from one flower to another and by wind flying by one flower to another.

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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

In terms of gravitational political energy,what happens to a ball as it rolls down a hill?

Andrew [12]

The gravitational potential energy of the ball decreases as it rolls down the hill while the gravitational kinetic energy of the ball increases due to its acceleration in velocity.

4 0

3 years ago

246.24 + 238.278 + 98.3=

ANEK [815]

Answer:

the answer is 582.818

Explanation:

i know this because i added up all the numbers.

3 0

3 years ago

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The idea that all living things are composed of cells and that all cells come from other cells defines

Irina18 [472]

The idea that all living things are composed of cells and that all cells come from other cells defines the cell theory.

Hope this helps! :)

5 0

3 years ago

Whole brain death occurs when the ______ ceases to function.

xz_007 [3.2K]

Answer:

Whole brain death occurs when the BRAINSTEM ceases to function.

Explanation:

In the US, whole brain death = legal death. Most people consider that a person is brain dead when the cerebrum, or the higher brain, is dead because the person is not able to think or have control over his/her body, but legally you are brain dead only when the brainstem ceases to function. The brainstem is responsible for keeping you alive and performing the most basic bodily functions like breathing and keeping your heart beating. But once it fails, you are legally dead. Even if your body could still survive using a ventilator and other devices, your brain has ceased to work and you wouldn't be able to survive if you were unplugged.

3 0

3 years ago

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