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m_a_m_a [10]
3 years ago
6

Define the term excretion.

Biology
1 answer:
Arisa [49]3 years ago
4 0

The liver breaks down many substances in the blood, including toxins. The liver also excretes bilirubin — a waste product of hemoglobin catabolism — in bile. ... The lungs are responsible for the excretion of gaseous wastes, primarily carbon dioxide from cellular respiration in cells throughout the body.

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41) When blood pressure receptors sense a loss of blood pressure, they ________ their firing rate.A) increaseB) decrease
Murrr4er [49]

A I believe because the blood pressure always increases when you are stressed or something like that

7 0
3 years ago
The gene D controls wing shape in flies and has two alleles: D is wild-type and dominant, and d is recessive and causes flies to
Juliette [100K]

Answer:

7 % progeny will show wild type phenotype

Explanation:

Parent 1: Normal wings and small eyes : DDee

Parent 2 : Downward wings and normal eyes : ddEE

DDee X ddEE = DdEe ( All have normal wings and normal eyes )

When a F1 individual is test crossed:

DdEe X ddee =

De/de = Parental

dE/de = Parental

DE/de = Recombinant

de/de =  Recombinant

Recombination frequency between the two genes is 14% hence DE/de and de/de will each have 7% frequency. Since DE/de ( DdEe ) will give wild type phenotype, it means that 7% progeny will have wild type phenotype.

7 0
4 years ago
Some animals generate two germ layers during gastrulation. They are called diploblasts. Other animals generate three germ layers
vova2212 [387]

Diploblastic blastopore - gastrovascular cavity

Protostome blastopore - mouth

Deuterostome blastopore - anus

Explanation:

Blastopores are structural indentations formed on the embryo during the gastrulation stage and this develops into mouth or anus depending upon the type of the embryo.

Diplolbastic (cnidarians) blastopores develop into the gastrovascular cavity in organisms like hydra

Triploblasts with three embryonic germ layers includes acoelomates, eucoelomates, and pseudocoelomates and the blastopores transform accordingly.

The blastopores of the triploblastic eucoelomates like the protosomes (mollusks, arthropods, annelids) transforms to the mouth, denoting ‘mouth first’; while that of the deuterostomes (chordates) transform to anus, denoting ‘mouth second’.

7 0
3 years ago
se presenta cuando un dividuo se alimenta de una parte del cuerpo de otro individuo conocido como huésped u hospedero Cuál es el
Sever21 [200]

Answer:

El parasitismo ocurre cuando un individuo, el parásito, se beneficia de otro individuo, el anfitrión, mientras daña al anfitrión en el proceso. Los parásitos se alimentan de tejidos o fluidos del huésped y se pueden encontrar dentro (endoparásitos) o fuera (ectoparásitos) del cuerpo del huésped (Holomuzki et al. 2010).

8 0
3 years ago
What is the smallest level of organization in living things?
BARSIC [14]
The smallest level of organizations in livings are cells.
3 0
4 years ago
Read 2 more answers
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