Which statement is incorrect? group of answer choices all of the following are correct muscle cells are surrounded by a branching network of transverse tubules. each muscle fiber is densely packed with myofibrils composed of contractile and elasted proteins. muscle cells are called muscle fibers. the cell membrane of a muscle fiber is the sarcolemma

- All of the following are correct

- Muscle cells are surrounded by a branching network of transverse tubules.

Explanation:

Muscle cells are composed of myofibrils, which are the fundamental and functional parts of a muscle cell. Myofibrils are the ones that are surrounded by a branching network of transverse tubules. These transverse tubules are extensions of the sarcolemma or the muscle cell's membrane. Their distribution and connection to myofibrils allow for the passage of Calcium ions needed for contraction.

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation:

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.