Answer:
1) give shape to cells lacking a cell wall;
2) allow for cell movement,e.g. , the crawling movement of white blood cells and amoebas or the contraction of muscle cells;
3) movement of organelles within the cell and endocytosis;
4) cell division
Explanation:
Answer: The correct answer for the fill in the blank is families.
There are eight hierarchical categories used to classify organisms. Order is one of the hierarchical categories used in classifying organisms. It is subdivided into several families. It means that families occupy lower place in the taxonomic categories.
Example- Grasses belong to the order Poales and it belongs to one of its families, which is called Poaceae.
Populations evolve and individual organisms do not. Evolution occurs through natural selection and survival of the fittest as populations evolve traits that better suit their environment.
When a person is startled by a nearby car horn, the sympathetic nervous system will increase its activity. This part of the nervous system will activate the person's fight-or-flight response. It will help the person decide whether to fight aggressively or to flee quickly. In this case, it will tell the person to quickly move away from the car.
Answer:
75%
Explanation:
This question involves a single gene coding for the ability to taste the chemical PTC. The allele coding for the ability to taste (T) is dominant over the allele coding for the inability to taste (t). This means that an heterozygous individual will have the ability to taste PTC.
According to this question, if two heterozygous tasters (Tt) cross to have a large family i.e. Tt × Tt, the following gametes will be produced by each parent;
Tt = T and t
Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:
TT, Tt, Tt - Tasters (3/4 or 75%)
tt - Non-taster (1/4 or 25%)
Note that based on the question asked, there is a 75% probability that their first child will be a taster because there is equal segregation of alleles into gametes.
