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kap26 [50]
3 years ago
12

What do white blood cells have that red blood cells do not?

Biology
1 answer:
bezimeni [28]3 years ago
8 0

Answer:

Leukocytes are also called white blood cells. These cells have a nucleus, unlike red blood cells that lack a nucleus. Also unlike red blood cells, white blood cells do not contain hemoglobin, which means they're not involved in the transport of oxygen.

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match the following column I.a.saprotrophs b. chlorophyll B .bacteria rhizobium d.cuscutae. e.insects f .mango tree g.leaf h. ti
IRINA_888 [86]

Answer:

a.saprotrophs  →   fungi

b.chlorophyll    →   green plant leaf

c.bacteria rhizobium   →  N2 fixing

d.cuscutae → parasites

e.insects  →  pitcher Plant

f .mango tree   →  autotroph

g.leaf  →  food factory of plant.

h. tiny pores present on leaf  → stomata.

I .CO2 and water →  raw material.

j.mushroom  →  saprophyte

   

6 0
3 years ago
Based on their observations and the data they collected, the Grants concluded that evolution by natural selection had occurred i
aalyn [17]

Answer:

C. Beak size is an inherited trait in the finch population under study.

D. Birds that could eat larger, tougher seeds survived and reproduced during the drought.

E. Beak size varies among the birds in the finch population under study.

Explanation:

The presence of genetic variations among the individuals of a population is required for natural selection to be operative. Natural selection targets the beneficial genetic variations present in the population. Natural selection refers to the differential reproductive and survival success of organisms of a population due to some beneficial genetic traits. These organisms with beneficial genetic traits are able to survive and leave more progeny under prevailing conditions.

If the natural selection has occurred in the ground finch population for the beak size, the beak size should be a genetic trait since natural selection works on genetic traits only. The finch population should have variations with respect to the beak size. The finches having the larger beak size that enabled them to feed on larger, tougher seeds should have higher survival and reproductive fitness during the drought.

Under these conditions, natural selection would favor the finches with larger beak size and would eventually result in an increase in the average beak size of the future generations.

4 0
3 years ago
How was the earth created and humans????
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I believe that the basic unit of structure and function in protists and monerans is the cell. This is because cells are basic unit of structure and function of all living things. A  cell is the smallest unit of life, it is the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed.
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