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Sonbull [250]
3 years ago
7

What is the main source of terrestrial ecosystems?​

Biology
2 answers:
GrogVix [38]3 years ago
8 0
I don’t know but look it up
deff fn [24]3 years ago
4 0

Answer:

Terrestrial ecosystems support most of our development, from raw materials to food production.

Explanation:

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State the significance of the peripheral nervous system
Serhud [2]

Answer:

              The human body  have two parts of nervous sytem the peripheral nervous system and the central nervous system

Explanation:

                        Peripheral nervous system contain all the nerves and ganglion that lies out side of the spinal cord and the brain.These two systems communicate with each other to make the body functional. The main function of the PNS is to connect the CNS to limbs and organs. Unlike the CNS the PNS is not protected by the vertebral column and skull.The peripheral nervous system is divided in to the somatic nervous system and the autonomic nervous system. The autonomic nervous control on the smooth muscles and glands.The connection between the CNS and organs keeps the body in sympathetic or parasympathetic  condition.

4 0
3 years ago
Suppose a bacterium has a mutated repressor protein that could not bind to the lac operator. how might this affect regulation of
NNADVOKAT [17]
<span>Then it never stops making protein which could either be bad or good; uncontrolled protein making can lead to cancer (tumors.)</span>
5 0
4 years ago
A pea plant homozygous for the trait of smooth seeds is crossed with a pea plant that is homozygous for the trait of wrinkled se
Fed [463]

Answer:

100%

Explanation:

A pea plant homozygous for the trait of smooth seeds;

let that be = ss

A pea plant that is homozygous for the trait of wrinkled seeds;

let that be  = ww

if ss crosses with ww; the F1 produces seeds that are all smooth

i.e ss × ww = (sw, sw, sw, sw)

From the  question, we are to find the percentage of the second generation that will produce smooth seeds after self fertilization occurs.

i.e  sw, sw, sw, sw  ×   sw, sw, sw, sw

= the result will yield ssww for all F2 progeny

∴ the percentage of plants that will have smooth seeds when the F1 generation is self-fertiized is 100%

8 0
4 years ago
Draw the Punnett square for the following cross: Rryy x rrYy. URGENT!!! Due tomorrow I really need help and please list all poss
Oksanka [162]

Answer:

Explanation:

3 0
3 years ago
Read 2 more answers
Which piece of evidence supports the argument that land plants evolved due to presence of microbes?(1 point)
S_A_V [24]

Answer:

Both primitive land plants and some modern land plants are able to grow on rock as a substrate.

Explanation:

6 0
3 years ago
Read 2 more answers
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